North Island, New Zealand
39.13 S, 175.642 E
summit elevation 1978 m
Stratovolcanoes
Ngauruhoe is the main active vent at Tongariro volcanic complex. Tongariro is a complex of craters that have erupted at different times.
Eruptions at Ngauruhoe have rarely been more than nine years apart.
The volcano has been quiet since 1975 – the longest break in activity in its recorded history. In 1975 an eruption produced pyroclastic flows and a 10km high ash plume.
Ngauruhoe was raised to level 1 alert in June 2006 due to an increase in earthquakes under the volcano.
1975-77, 1972, 1968-69, 1962, 1958-59, 1956, 1948-54, 1939-40, 1937, 1934, 1931, 1924-28, 1917, 1913-14, 1909-10, 1904-07, 1896-98, 1892, 1890, 1885-86, 1883, 1881, 1878, 1875, 1869-70, 1862-64, 1859, 1857, 1855, 1844, 1841, 1839.